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Finding the Fourth Proportional to 311,203.40, 466,862.70 and 100,848.20

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Solution

The fourth proportional to 311,203.40, 466,862.70 and 100,848.20 is: 151,290.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,203.40 : 466,862.70 = 100,848.20 : x
  2. Step 2: Convert to fraction form
    311,203.40/466,862.70 = 100,848.20/x
  3. Step 3: Cross multiply
    311,203.40x = 466,862.70 × 100,848.20
  4. Step 4: Simplify right side
    311,203.40x = 47,082,262,942.14
  5. Step 5: Solve for x
    x = 47,082,262,942.14/311,203.40
  6. Step 6: Final answer
    x = 151,290.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.